two left feet or grand diabolical design?

The Bush admin diplomatic effort seems to be run by incompetents. From refusing to talk to everyone we don't agree with (North Korea, Iran, and Syria) to sending abrasive windbag Bolton to the United Nations, to leaking documents critical of our vital allies (the Hadley memo dissing Iraq PM Maliki causing him to cancel his big date with Bush in Jordan - Bush's plans for a 3-way with Maliki and King Abdullah of Jordan went up in smoke) our foreign policy is in apparent disarray.

Are these people stupid or crazy like the fox? After 9/11 the brain trust at the White House (Cheney, Rummy, and the Neo Cons) came to the conclusion that fundamentalist islam is the primary threat to U.S. global interests (economic liberalism and control of access to fossil fuels). Islam is split into 3 main factions (Sunni, Shia, and Sufi)
The Sufi don't matter much (primarily hashish dervishes and homoerotic poets) but the Shia and the Sunni hate each other as much or more than they hate infidels (us). By invading Iraq we have exacerbated these sectarian tensions.This is uncontroversial.
I suggest that this has been done intentionally (too few troops, disbanding the 300,000 stong Iraqi military which seemed designed to fuel the insurgency, ineffective reconstuction efforts) to destabilize the entire middle east by racheting up the Civil War in Iraq to the point that the big regional powers - Saudi Arabia with its tribal ties to Iraq's Sunni minority and Iran - Shia co-religionaries of the Iraqi majority - are boxed into a regional war. The end result will be long term U.S. / Israeli occupation of the oil producing regions of the Middle East and the end of Saudi and Iranian dominance over their respective flavors of Islamic Fundamentalism.
Maybe the Bush administration is run by fools. Maybe these are some of the most degenerate Machiavellian sons of bitches ever. Time will tell but my money is on the latter.